diff --git a/srcpkgs/ipv6calc/template b/srcpkgs/ipv6calc/template
index 5ebe843eabc..cc4278c1fc5 100644
--- a/srcpkgs/ipv6calc/template
+++ b/srcpkgs/ipv6calc/template
@@ -12,3 +12,5 @@ license="GPL-2.0-only"
 homepage="https://www.deepspace6.net/projects/ipv6calc.html"
 distfiles="https://github.com/pbiering/ipv6calc/archive/${version}.tar.gz"
 checksum=1935352f6171b07f18ce0487ee95ffcc006ea3f653f7cba564d2d8e135f04ca1
+
+CFLAGS="-fcommon"